# 演示第二种字符串格式化的方式：f“{占位}”
name = 'sb'
set_up_year = 2004
stock_price = 19.99
print(name)
print(set_up_year)
print(stock_price)
print(f"I am {name}, i began from {set_up_year}, my stock price is {stock_price}")
print(f"{set_up_year}, {stock_price}, {name}")
